eg.
Tell him which class you are in 。
Do you know what he likes？
注：
（1）主、从句时态一致：
主句谓语过去时，从句相应过去时；
He answered that he was listening to me.
主句谓语现在时，从句时态任所需；
eg. He says （that） he will leave a message on my desk.
They know （that） he is working hard.
具体过去永不变，真理格言现在时；
told me that he was born in 1980.
Father told me that practice makes perfect 。
（2）否定前移，及完成反意问句
在think / believe / suppose / guess / imagine / expect等动词后跟宾语从句否定式时，应转移到主句上去，完成反意问句时，应与从句主、谓保持一致。（注： 否定前移的条件是，主句主语是第一人称）
eg. I don‘t think you are right ，are you ？
I don‘t believe they have finished their work yet，have they ？
（3）运用虚拟语气的情况
在表示：
建议 suggest 、advise、propose；
要求demand 、desire、request；
决定 decide；
命令 order、command、require；
坚决主张 insist；
等动词后跟宾语从句，用（should）+v.（虚拟语气）